Oh man, a blissful storm of ignorance and poor taste, all in one! The protagonist was incredibly human, full of flaws, personal issues, and selfish. And while that contrasts grossly with typical "hero" types as protagonists, it certainly made the movie vastly more interesting in relating to the character. Everyone knows someone like him; not many people are willing to fly spaceships straight into the lair of the bad guy, or suicide themselves in some glorious way.
And then their is the whole South Africa bit that you seemed to miss, but others have gone as far as to link you to the Wikipedia article on that.
I guess I can comment on the actual topic as well, which is Avatar. And a few people have hit the nail on the head - blue people running around in a jungle for 150 minutes. There is very few, if any, original plot devices, and this was only reinforced by my roommate getting the Blu-Ray and screening it in the living room. Fern Gully in Space with Blue-Cat-Alien people - "Save the nature, save the world." /Hiro voice